NPPES file of Aug 9, 2026

Internal Medicine Physician in Illinois

7,238 NPPES records list internal medicine physician with a practice address in Illinois, 58 per 100,000 residents, the 9th highest rate of 51. Chicago and Maywood have the most; each record links to the provider's NPI and the Illinois license search. Page 124 of 145.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Chicago has the most, 2,867

  1. Chicago2,867
  2. Maywood257
  3. Springfield196
  4. Evanston178
  5. Oak Lawn173

Internal Medicine Physician records in Illinois

  1. Ahmed Sokrab, MDSpringfield, IL 627021730594094
  2. Marianne Solano, MDChicago, IL 606081982400750
  3. Christine SolansLombard, IL 601481497215198
  4. Krystyna Solarewicz, M.D.Chicago, IL 606891134149727
  5. Maciej Solarewicz, MDChicago, IL 606891093792574
  6. Fernando Soler, M.D.Chicago, IL 606221164582680
  7. Mark Solinski, MDChicago, IL 606111205530656
  8. Diana Solis Torres, MDChicago, IL 606371144924416
  9. John Sollee, MDChicago, IL 606111811756109
  10. Norman Solliday, M.D.Orland Park, IL 604621619224706
  11. Eric Solnin, M.D.Oak Park, IL 603041437419413
  12. Alfred Solomon, MDChicago, IL 606121215458104
  13. Kathryn SommerChicago, IL 606371750070082
  14. Michael Sommerfeld, MDLake Forest, IL 600451578547063
  15. Christine Son, MDEvanston, IL 602011356043848
  16. Chung Song, MDChicago, IL 606211710914999
  17. Da Young Song, MDMokena, IL 604481952982183
  18. Joongyu Song, MDChicago, IL 606231003376062
  19. Sarah Soni, M.D.Palos Heights, IL 604631518146034
  20. Rajiv Sood, MDHoffman Estates, IL 601691699738351
  21. Raquel Soon-Shiong, DOChicago, IL 606121114543139
  22. May Soong, M.D.Rolling Meadows, IL 600081932336872
  23. Ranjana Soorya, MDLong Grove, IL 600471396762084
  24. Tracy Sorce, MDChicago, IL 606111023001542
  25. Loren Soria, MDGeneseo, IL 612541700864295
  26. John Sorin, M.D.Chicago, IL 606111194782037
  27. Ayomide Sotomi-Foluso, MDChicago, IL 606401154932291
  28. Abdelmalek Souadi, DOChicago, IL 606251396334249
  29. Radha Soundarrajan, M.D.Buffalo Grove, IL 600891750310454
  30. Gavin Sowa, MDChicago, IL 606111780333682
  31. Olalekan Sowade, M.D.Hazel Crest, IL 604291962486274
  32. Bolanle Soyannwo Balogun, M.DChicago, IL 606231316122468
  33. Joaquim Spadoni Barboza, M.D.Evergreen Park, IL 608051689805160
  34. Adam Spain, D.O.Elgin, IL 601231659758068
  35. Sharon Spak-Schreiner, M.D.Arlington Heights, IL 600041003054289
  36. Molly Spalding, MDChicago, IL 606121457054579
  37. Katherine Spangenberg, M.D.Joliet, IL 604351942246954
  38. Reginald Spears, M.D.Long Grove, IL 600471861485153
  39. Nicoleta Speil, M.D.Springfield, IL 627031023181047
  40. Melvin Speisman, MDLibertyville, IL 600481295771186
  41. Gretchen Sperka, DOChampaign, IL 618221518067743
  42. Allison Spihlman, MDChicago, IL 606111518669001
  43. Elaine Spirakes, MDLombard, IL 601481164528253
  44. Kevin Spitler, M.D.Urbana, IL 618011265794275
  45. Maria Spizzirri, M.D.Berwyn, IL 604021114288503
  46. Karen Spurgash, DOOrland Park, IL 604621366499352
  47. Radhika Sreedhar, M.D., M.S.Chicago, IL 606121558341677
  48. Shantala Sreerama, M.D.Chicago, IL 606431295747061
  49. Chanunya Srihawan, M.D.Chicago, IL 606571356637516
  50. Kavitha Srinivasan, MDGlenview, IL 600251336208826

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 9 of 51 per resident

  1. Hawaii63
  2. New York62
  3. Delaware58
  4. Illinois58
  5. Michigan57
  6. Pennsylvania56
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

72.5% of these records appear in a Medicare file, against 78.7% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Illinois72.5%
  2. United States78.7%

Internal Medicine Physician records in Illinois, measured

  • In a Medicare file5,251 of 7,238 · 72.5% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file3,584 · 49.5% here, 61.4% nationally
  • Not updated in five years or more3,434 · 47.4% here, 55.4% nationally
  • Median graduation year2003 · the 3,580 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

7,238 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Illinois: 58 per 100,000 residents against 44 nationally (50 states and D.C.). Chicago has 2,867 of them (40%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Pennsylvania7,300
  2. Massachusetts6,825
  3. Michigan5,735
  4. Texas9,175

States with a similar rate per 100,000

  1. Delaware58.1
  2. New York61.7
  3. Hawaii62.9
  4. Maryland63.2

The largest states

  1. California17,696
  2. New York12,067
  3. Florida10,151
  4. Texas9,175
  5. Pennsylvania7,300

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.